Drying attachment for brick-kilns



- (No Model.)

, 'P. J. GURNEE. 1 DRYING ATTACHMENT FOR BRICK KILNS.

No. 402,321. Patented Apr. 30, 1889.-

ATTORNEYS.

N. PETERS. PholuLilhugr-zpher, Wmhingion. n.6,

' UNITED STATES PATENT OF ICE.

PALMER J GURNEE, or RONDOUT, NEW YORK.

DRYILNG ATTACHMENT FOR BRlCK-KlLNS.

SPECIFICATION forming part of Letters Patent No. 402,321, dated April3Q, 1889.

Application filed September 18, 1888- Serial No. 285.675. (No model.) I

To all whom it may concern.-

Be it known that I, PALMER J GURNEE, of Rondout, in the county of Ulsterand State of New York, have invented a new and Improved DryingAttachment for Brick-Kilns, of which the following is a full, clear, andexact description.

My invention relates to a drying attachment for brick-kilns, and has forits object to provide a means for distributing heat from an oil or gasburner through the arches of a green brick-kiln in such a manner thatthe bottom bricks Will not pop before being heated to a red or Whiteheat; and the further object of the invention is to provide a meanswhereby the heat may be expeditiously and conveniently shut off from anygiven tier of bricks should the popping commence therein.

The invention consists in the construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed out.in the claims.

I Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a central longitudinal section through the device,illustrating the same in position in the arch. Fig. 2'is a plan view ofthe device, illustrating the full length of the arch; and Fig. 3 is apartial side elevation of the exterior of a kiln.

In carrying out the invention the kiln 10 is constructed in the usualmanner and provided with any desired number of arches, 11, extendingthrough from side to side. Immediately within the arches at each end achamber, 12, is. provided, usually rectangular in contour, constructedpreferably of fire-brick or other equivalent material capable ofenduring intense heat Without scaling or breaking. The said chamber 12may be of any length found desirable in practice. A metal fire-box orheater, 13, is located in each end of the arch, the outer ends of whichare inserted in the chamber 12, as illustrated in Figs. 1 and 2, a spacebeing made to intervene the approaching inner ends.

The heaters maybe of any desired contour, but are preferably maderectangular and provided upon the upper surface with a series ofgraduated apertures or perforations, 14, the

smallest apertures being at the outer end of the heaters and the largestat the inner end. The perforations may be of the same size withoutdeparting from the spirit of the invention, and may be produced in thesides also; but the construction illustrated is preferred.

A horizontal damper, 1 5, is made to slide upon the upper perforatedsurface of the heaters, provided with side or guide flanges, 16, asshown in dotted lines in Fig. 1. Upon the upper face of the dampers,usually near their outer end, an eye or staple, 17, is attached, and agate, 18, is hinged to the inner end of the damper, as best shown inFigs. 1 and 2.

The ends of the heaters are open, and the bottom at the inner end ispreferably curved upward to facilitate its introduction into the archesafter the kiln is built.

The flame used in heating the kiln is obtained from gas or oil, and tothat end a burner, 19, of any approved pattern, is employed, whichburner is introduced at the mouth of the arches and inserted into thechambers 12. The perforations are made smaller in the heaters near themouth of the arch than those located at the inner ends of said heaters,to equalize the radiation of the heat, the said heat being more intenseupon entering the heaters, decreasing toward the end, as the volume offlame is greater.

In operation, should the green bricks, when the heat is turned on,commence to pop above the heaters at any point in their length, thesurface of the heater immediately under the popping tier is covered bythe damper and the heat checked at that point. This is expeditiously andconveniently eifected by inserting a bar having a hooked end into thearch and engaging therewith the eye or staple draft there may be passesout between the heaters and the top of the arch, and over the chamber12.

When the brick are sufficiently dried for full firing, the heaters areremoved.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. The eombin ation, with the arch of a brickkiln anda burner introduced therein, of a heater located in said arch,havingopen ends and provided with a perforated top, and a damper capable ofsliding over said top provided with a hinged gate, substantially asshown and described.

2. Aportable heater forbrick-kilns, consisting of a box having aperforated top and provided with an imperforate slide or damper fittedto slide upon its upper perforated surface, substantially as described.

3. The combination, with a heater provided with a series of graduatedperforations and open at its ends, of a damper held to slide over theperforations and a gate hinged to said damper, substantially as shownand described.

PALMER J. GURNEEI \Vitnesses:

W. N. GILL, WILBUR L. HALE.

